﻿using System;

namespace _51.索引器
{
    class Program
    {
        static void Main(string[] args)
        {
            classA a = new classA();
            //a[1, 0] = "sb";
            //Console.WriteLine(a[1,0]);
            //a.a();
            Console.WriteLine(a["周五"]);
            
        }
    }
}
